在自然资源的开�中人们必须考�到它是一个相互联系相互制约的资源系统这主要是依据自然资源的 A地域差异性 b数量的有限性 c整体性 Template




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tomski在自然资源的开�中人们必须考�到它是一个相互联系相互制约的资源系统这主要是依据自然资源的 a地域差异性 b数量的有限性 coloring